The legal people asked about my background as they were preferably looking for someone with experience in the construction framework.
However, most of the questions were 'soft-skills related'; is it a problem for you relocating? are you single? (and I'll leave up to you to decide on the appropriateness of this question)
For The HR person the personality test was a mantra, something to have complete faith in. Every time, she used to refer to this test after I replied to her questions.